A. Tell whether each equation is a quadratic or not. Write your answer on the space provided. 6.y= 2x² - 2 1. y = 2x2 + 4x2 - 5 2. y = 2x? 7.a: 26 3.x²=7 8. x² - 4 = y 9. x3 + 2x = 0 4. x2 + y = 5 5. 3x2 - 25 = 0 10. x2 - 2x =-5​